As I am a highly visual learner, I've selected two very interesting videos on the topic.
"It's an easily accessible online area where you store all you think is important to your career development."
"They serve as a student's professional digital footprint showcasing a combination of student's work in different formats over a period of time."
A key word mentioned in this last video is REFLECTION. I'm a great fan of e-portfolios myself as it can help learners reflect about their own learning and it's EVIDENCE of what students have learned.
In my opinion, the use of e-portfolios is one of the best ways to evaluate student's progress as well.
In order to help me understand more about e-portfolios, I've also read some articles about their use in education.
An article I really enjoyed reading was
"Portfolios to Webfolios and Beyond: Levels of Maturation" written in 2004 by Douglas Love, Paul Gathercoal and Gerry McKean. In the article, the authors describe different levels of maturation when adopting e-portfolios as an educational tool. The image bellow taken from the article is the taxonomy developed by them.
They also make a distinction between e-portfolios and webfolios.
Portfolios to Webfolios and Beyond: Levels of Maturation (EDUCAUSE Quarterly) | EDUCAUSE.edu via kwout
Another visual resource which I found very useful was the infographic below taken from the blog post http://www.pontydysgu.org/2013/02/issues-in-developing-and-implementing-e-portfolios/ . The blog post mentions the original article which inspired the infographic in which a dichotomy is brought forth: e-portfolios for LEARNING X e-portfolios for ASSESSMENT.